---
kind: "section"
citation: "30 C.F.R. § 57.8529"
title: "30"
number: "57.8529"
heading: "Auxiliary fan systems."
url: "https://uscodex.org/cfr/30/57.8529"
---

# §57.8529. Auxiliary fan systems.


When auxiliary fan systems are used, such systems shall minimize recirculation and be maintained to provide ventilation air that effectively sweeps the working places.


## Notes

### Authority

Authority: 30 U.S.C. 811.

### Source

Source: 50 FR 4082, Jan. 29, 1985, unless otherwise noted.